baber/WOPTO huggingface dataset:
Patent GB-1478710-A (GB)
Title: Sheet stack holder
IPC: B65H1/14
Filed: 1974-11-22
Abstract: 1478710 Pile tables EASTMAN KODAK CO 22 Nov 1974 [23 Nov 1973] 50708/74 Heading B8R A pile table 14 supported on a base 18 and guided for parallel rising and falling movement relative to the base by scissors linkages 16, has a two-legged catch 58 secured thereto, the catch forming a rigid drive connection with a drive lever 54, freely pivotably mounted on a chain 38, when the chain drives the lever upwards. A motor 50, which drives the chain, is controlled so that the uppermost sheet of a pile on the table is kept at the same level and when the pile is exhausted the motor is reversed causing the table to descend under its own weight until it abuts a stop 32a, the lever then being disengaged from the catch by engagement with a stop 66. The table may be laterally movable on rollers 34. A vacuum sheet separator may be employed.
Patent GB-1249728-A (GB)
Title: Improvements in or relating to glass ceramic materials
IPC: C03C10/00
Filed: 1969-10-15
Abstract: 1,249,728. Treating glass ceramics. CARLZEISS-STIFTUNG, [trading as JENAER GLASWERK SCHOTT & GEN]. 15 Oct., 1969 [23 Oct., 1968], No. 50755/69. Heading ClM. A transparent glass ceramic of composition (weight per cent): 50 - 65 SiO 2  21 - 28 Al 2 O 3  0 - 10 P 2 O 5  1À5 - 5 Li 2 O 0 - 2 MgO 0 - 8 ZnO 0À5 - 5 TiO 2  1 - 3 ZrO 2  0 - 1 Na 2 O 0À5 - 1 As 2 O 3 , wherein SiO 2  : (AlPO 4  + LiAlO 2  + MgAl 2 O 4  + ZnAl 2 O 4 ) = 1À2-2À1 : 1, (SiO 2  + AlPO 4 ) # 71, (MgO+ZnO) # 2, and (SiO 2 +AlPO 4 +LiAlO 2  + ZnAl 2 O 4  + MgAl 2 O 4 ) # 90, is treated with a Li 2 SO 4 /K 2 SO 4  salt melt for 1-10 hours at 650-800‹ C. so as to strengthen it. The Li content is preferably higher than, most preferably at least twice, the K-content of the melt. A number of composition examples and examples of treatment schedules are given. The glasses of the examples all had a yellowish tinge.
Patent GB-1190239-A (GB)
Title: Improvements in or relating to Electric Circuits Suitable for Use as Voltage Regulators or Signal Attenuators
Inventor: HOKE LEANDER HENRY
IPC: G05F1/56
Filed: 1967-11-09
Abstract: 1,190,239. Transistor amplifying circuits. PHILCO-FORD CORP. 9 Nov., 1967 [9 Nov., 1966], No. 51018/67. Heading H3T. [Also in Division G3] An automatic voltage control circuit comprises a first amplifier having a first terminal connected to a supply terminal and a second terminal connected through a voltage divider to a second supply terminal, a second amplifier having a first and second terminal each connected through impedances to respective first and second supply terminals, and means connecting a control terminal of the first amplifier to the first terminal of the second amplifier and means connecting the control terminal of the second amplifier to the first supply terminal and a tap on the voltage divider. A transistor T 1  is connected in series with a voltage divider R 4 , R 5  and another transistor T 2  in series with resistors R 2 , R 3  both across a supply V s , the control electrodes, i.e. the bases being connected as shown. Theoretical justification is given in the Specification to show that dependent on the value of resistor R 3  the voltage between V r  and earth V s  can remain constant or given a constant slope for variation in supply voltage, see Fig. 2 (not shown). The circuit may be used as an attenuator and depending whether the value of R 3  is equal to, above, or below a critical value, the output signal may eliminate variations of the input signal or the output signal may have the same or reverse phase to the input signal respectively.
Patent GB-1085180-A (GB)
Title: Tarnish resistant cu-al-za alloys
IPC: C22C9/01
Filed: 1965-12-02
Abstract: A tarnish resistant alloy which may be used as a visual colour substitute for copper comprises:- <TABS:1085180/C6-C7/1> and has a chromaticity consisting of dominant wavelengths between 584 mm  and 592 mm  in a colour purity range between 18.5% and 30.2%. The alloy may be heat treated in an oxygen containing atmosphere at 400 DEG C. followed by slow cooling or at 600 DEG C. followed by water quenching to improve the tarnish resistance and colour thereof. missing page 110
Patent GB-1273605-A (GB)
Title: Improvements in or relating to combine harvesters
IPC: A01D41/12
Filed: 1969-10-17
Abstract: 1,273,605. Combine harvester. TEXAS INDUSTRIES Inc. 17 Oct., 1969 [22 Oct., 1968], No. 51222/69. Heading A1F. An arrangement for producing a vertical air curtain around the driving position of a combine harvester comprises a rectangular hood 2, pivotable with respect to the harvester about an axis normal to its operative travel direction via a parallelogram linkage having a horizontal bar component 31 and swinging bar components 20, 22, 25, 29. Hood 2 is formed from two horizontal plates 3 or 4, the latter being smaller thus leaving an uninterrupted circumferential slot 5 on the bottom. The space between plates 3 and 4 accommodates a centrally located, vertical axle fan 9 which is drivingly rotatable via a system of shafts 17, 24, pulleys 38, 40, 41, which are arranged at the parallelogram pivot points, and belts ropes or chains 39, 40, from a power source on the harvester. The position of hood 2 is controlled by hydraulic cylinder 48 acting via a lever on bar 31. A flap 34, adjustable by lever 35 is pivoted on the leading edge of hood 2 to deflect the air curtain. When inoperative the hood 2 swings back to lie substantially flush with the grain tank top. In a second embodiment the fan 9 is driven hydraulically by a gear wheel pump located on its axle. In a third embodiment the hood 2 is supported solely by a hydraulically controlled, horizontally pivoted single arm, which swings down in front of the grain tank behind the driving position.
Patent GB-1441696-A (GB)
Title: Rotary mechanism
IPC: F01C19/02
Filed: 1974-11-29
Abstract: 1441696 Rotary positive-displacement-fluidmachines FORD MOTOR CO Ltd 29 Nov 1974 [3 Dec 1973] 51921/74 Heading F1F In a Wankel-type machine e.g. an I.C. engine, each apex seal 10 has a generally U-shaped profile in cross-section and is biased towards the housing 16 by gas pressure transmitted from the adjacent chambers through passages 32, 34 in the rotor 14, by-passing of the seal being prevented by a valve 24, which subjects most of the underside of the seal to the highest pressure in the said chambers and may comprise a vane 26 secured to a pivot pin 28. The seal may be also biased by compression coil, or leaf, springs 36, 38.
Patent GB-1293913-A (GB)
Title: Mobile machines for handling rail fasteners for the permanent way
Inventor: PLASSER FRANZ
IPC: B25B21/00
Filed: 1969-10-24
Abstract: 1293913 Railway track maintenance vehicles F PLASSER 24 Oct 1969 [25 Oct 1968] 52203/ 69 Heading E1G In a railway track maintenance vehicle carrying one or more self-centering tools 27 for actuating bolts or other rail fasteners 25, the tools are positioned by a rail-engaging guide, such as a two-wheeled bogie 10, which is common to a plurality of tool holders 22, each tool holder being connected resiliently in at least the lateral direction with the guide. As shown each rail 3 is engaged by a two-wheeled bogie 10 forming the guide, the two bogies being mounted beneath the chassis 1 of a rail vehicle Figs. 1, 2 (not shown). Each bogie 10 provides a housing 23 in which are resiliently located a pair of holders 22 for boltscrewing tools 27, the bogie being hydraulically raised and lowered on extension 19a of a column 19 depending from a support 16. The support 16 is mounted by rollers 17 and pivot 14 on a plate 12 whereby it may be swung laterally to accommodate rail curves, the plate 12 being movable along longitudinal guides 11 on the chassis 1 by means of a chain 9, whereby the plate 12 and its tools 27 can advance intermittently between fasteners 25 independently of the advance of the chassis 1. Two operator's cabins are mounted below the chassis 1 as in Specification 1293912. Location of the tool 27 on a fastener at each advanc may be facilitated by lowering a ram-actuated adjustable stop 32. In a modification, Fig. 10 (not shown), a ram-actuated stop lever (50) limits the upward movement of the tool at each advance. In a modification, dispensing with the twowheeled bogies 10, two pairs of fastener-actuating tools, Figs. 8, 9 (not shown), are suspended for adjustable and resilient lateral movement from a framework on a four-wheeled bogie suspended from a rail vehicle, their lateral position being controlled by depending rail feeler rods (46).
Patent GB-1200177-A (GB)
Title: Sanitary garments
Inventor: PEET ERIC HERBERT
IPC: A61F13/64
Filed: 1966-11-22
Abstract: 1,200,177. Sanitary garments. SOUTHALLS (BIRMINGHAM) Ltd. 21 Nov., 1967 [22 Nov., 1966], No.52231/66. Heading A5R. A garment for supporting sanitary or incontinence pads comprises an elastic waistband 1 the ends of which are fastened in variable overlapping relationship and a liquid impervious crutch piece 5 having a pair of elastic straps 6, 7 at each end adjustably fastened to the waistband, all the fastenings 2, 3, 4, 8 provided comprising complementary filament hook and loop type fastening strips.
Patent GB-1321627-A (GB)
Title: Packages with tear-open thread
IPC: B65D17/50
Filed: 1970-11-03
Abstract: 1321627 Packages with tear-open thread SWISS ALUMINIUM Ltd 3 Nov 1970 [4 Nov 1969] 52248/70 Heading B8C In a package container comprising a body and a lid heat sealed together by an intermediate layer of thermoplastic resin which extends continuously around an external flange of the body and a tear-open thread, which lies inwardly of the seal with its ends passing outwardly thereof and consisting of polyester strands twisted together, the tear-open thread is impregnated with a synthetic resin which is capable of adhering to the intermediate layer and which serves to prevent the passage of bacteria along the thread. The impregnating synthetic resin can be a low-density polyethylene, a copolymer of ethylene with acrylic aicd or acrylic ester, an epoxy resin, an epoxy phenol resin, a polyamide, or an ethylene-vinyl copolymer. The body and lid may be made wholly of a synthetic resin or for instance of an aluminium foil laminated to a synthetic resin which kind of container is particularly useful for foodstuffs. The impregnant may be applied as a solution, a dispersion, or a melt. The tear thread may be laid in a groove in the under surface of the lid or, the upper surface of the container. The ends of the thread may emerge at a single point or at separate points, and either, or both, may have a tab. The containers may be circular, oval, rectangular, or any other desired shape.
Patent GB-1487587-A (GB)
Title: Crystal growth
IPC: C30B15/24
Filed: 1974-12-04
Abstract: 1487587 Growth of crystals as thin strips METALS RESEARCH Ltd 4 Dec 1975 [4 Dec 1974] 52379/74 Heading BIS A crystal is grown in the form of a thin strip by pulling the growing crystal from a melt through a narrow slit whose walls are not wetted by the melt, the solidifying interface between the melt and the crystal being within the slit and the pressure of the melt. adjacent to the interface being at a level sufficient to cause the meniscus of the melt to be convex on all sides of the crystal while the depth of the slit is sufficient to permit the required pressure to be developed without the melt being forced beyond the outlet end of the slit. Suitable apparatus, as shown in Fig. I, comprises a crucible 14 for containing a melt 16 in a growth chamber 10 fitted with a heating coil 11; a plate member 18, attached to the lower end of a sleeve 20 which is a clearance fit within the crucible 14, floating on the melt 16; and a deep slit 26 of rectangular cross section centrally disposed in the plate 18 through which the crystal is pulled using seed 38. Pressure is applied to the plate by means of devices 31 to cause the melt to rise into the slit to the point where the meniscus is convex on all sides of the crystal Cooling may be applied in the region of growth by manifold 32. The method is suitable for growing single crystals of semiconductor material e.g. Si, Ge, Ga P and Ga As. Suitable materials for making the slit are e.g. beryllia, yttria, and thoria. Where a material which is not wetted by the melt cannot be found a fluid barrier may be formed within the slit to isolate the melt from the slit, preferably using a porous material to define the slit.
Patent GB-1503770-A (GB)
Title: Fluid jet looms
IPC: D03D47/00
Filed: 1975-12-23
Abstract: 1503770 Jet looms RUTI-TE STRAKE BV 23 Dec 1975 [20 March 1975] 52646/75 Heading DIE A confusor has teeth 8' arranged in pairs bridged at their top ends plates 8b. Auxiliary nozzles 10a may be provided.
Patent GB-1482099-A (GB)
Title: Sulphonamido derivatives
IPC: C07D211/58
Filed: 1974-12-11
Abstract: 1482099 Sulphonamides JOHN WYETH & BRO Ltd 10 Dec 1975 [11 Dec 1974] 53643/74 Heading C2C The invention comprises novel compounds (I) wherein W represents an aryl or indolyl radical, either of which radicals may be substituted or unsubstituted; A represents a C 1-6  alkylene radical, an oxo C 1-6  alkylene radical or a hydroxy C 1-6  alkylene radical; R represents a phenyl radical, a phenyl radical optionally substituted other than by an amino or substituted amino group, a cycloalkyl radical of of 5 to 7 carbon atoms or a C 1-6  alkyl radical; R<SP>1</SP> represents hydrogen or C 1-6  alkyl radical; the N- containing ring represents a system of Formula II(a), II(b) or II(c) and X(-) represents an anion; or a pharmaceutically acceptable acid addition or quaternary ammonium salt of a compound having a ring system II(b) or II(c). They are made by standard methods. Pharmaceutical preparations having hypotensive action contain (I), where the N-containing ring is of Formula II(c), as active ingredient.
Patent GB-1114038-A (GB)
Title: Process for the improvement of the fastness to gas fading of dyeings and plastics which are sensitive thereto
IPC: C07C59/68
Filed: 1966-11-30
Abstract: The fastness to gas fading of dyeings and plastics is improved by treating them with a water soluble piperizine of formula <FORM:1114038/D1-D2/1> in which R1 is an alkyl or alkenyl group of 6-18 carbon atoms, an unsubstituted cycloalkyl group of 6-18 carbon atoms or a mono-nuclear aryl or aralkyl group the ring of which may be substituted by non-colouring or non-ionogenic substituents. R2 is hydrogen, hydroxy, amino, mono- or dilower alkylamino, an alkyl group of 1-4 carbon atoms or a said alkyl group substituted by hydroxyl, alkoxy, cyano, amino, alkylamino, hydroxyalkylamino or heterocyclic nitrogen ring substituted amino groups.  The materials may be treated with an aqueous solution of the piperazine compound or the compound may be incorporated in the materials at a spinning stage.
Patent GB-1268739-A (GB)
Title: Thermoplastic polyamide moulding compositions
Inventor: SCHNEIDER JOHANNES
IPC: C08L77/00
Filed: 1969-03-24
Abstract: 1,268,739. Polyamide composition. DYNAMIT NOBEL A.G. 24 March, 1969 [23 March, 1968], No. 53688/71. Divided out of 1,267,376. Heading C3R. A composition comprises by weight (a) 1-99 parts partially crystallized polyamide A and (b) 99-1 parts amorphous polyamide B. Polyamide A is derivable from an #-amimo acid or #-lactam or from an aliphatic dicarboxylic acid and an unbranched aliphatic diamine; the term "partially crystallized" means that part of A is amorphous and part crystalline. Polyamide B is derivable from a mixture of 60-80% wt. isophthalic and 40-20% terephthalic acids, and an unbranched aliphatic diamine containing 6, 9, or 12 C atoms. Polyamide A may be nylon 6, 6/6, 6/10, 11, 12, or a co-condensate of hexamethylene diamine, adipic acid, and G-caprolactam, with or without P,P<SP>1</SP>-diamine-dicyclohexyl methane. Polyamide B may be derived from diphenyl iso- and tere-phthalates. The viscosity number of B may be 90-180. The composition may be formed by melt compounding A and B, e.g. at 220-280 C. or by use of powdered A and B in a high-speed fluidizing mixture. Use.-Moulding, e.g. injection moulding of 4 mm. sheets.
Patent GB-1455930-A (GB)
Title: Butterfly flap valve
IPC: F16K1/24
Filed: 1974-12-13
Abstract: 1455930 Valves TH JANSEN GmbH 13 Dec 1974 [18 Dec 1973] 53916/74 Heading F2V A butterfly valve has a closure 3 operated by rotation of a shaft 5 which is positioned across the bore of a housing 1 and connected to the closure by a single lever 6 and a pin parallel to the shaft, there being also a single link 10 pivotally connected to the closure and to the housing, the closure being thus caused on opening to first move axially before turning. A setting ring 13 Fig. 1 (not shown) is provided on the shaft inside the housing to restrict outward movement of the shaft.
Patent GB-1441422-A (GB)
Title: Process for working up the wash solution obtained in the washing  ofso2-containing gas with aqueous ammonium sulphite solution
IPC: C02F1/04
Filed: 1973-11-21
Abstract: 1441422 Sulphur dioxide removal DAVY POWERGAS GmbH 21 Nov 1973 [22 Nov 1972] 53969/73 Addition to 1376404 Heading C1A Sulphur dioxide is removed from an off-gas by washing with an aqueous solution containing ammonium sulphite and the resulting wash solution is worked up by evaporating the solution, by direct heat exchange with hot reaction gas from the second stage of the process, down to a water content of between 15 and 55 wt. per cent, decompositing the concentrated mixture at a temperature of from 900-1250‹ C. with simultaneous combustion of a carbon- and/or sulphur-containing gas, and working up the resulting reaction gas, after it has been used in the evaporation stage, to form sulphuric acid or elemental sulphur. The process is characterized in that before or during the evaporation stage, the wash solution is supplied either with no sulphuric acid or with an amount of sulphuric acid which is insufficient to liberate sulphur dioxide from all the ammonium sulphite and/or ammonium bisulphite present in the solution. Preferably, the amount of sulphuric acid added is sufficient to liberate sulphur dioxide from up to 83% (and particularly from 10 to 20%) of the ammonium sulphite and/or ammonium bisulphite present in the solution; the wash solution is evaporated down to a water content of between 25 and 50 wt. per cent; an oxygen content of between 2 and 10 vol. per cent is maintained in the reaction gas leaving the decomposition step; and the reaction gas is washed after having been used in the evaporation stage and the resulting wash acid is added to the wash solution to be treated. In a preferred embodiment, the evaporation stage takes place in a tower in which the reaction gas is flowing upwardly, and into which the wash solution and sulphuric acid are sprayed, at least part of the sulphuric acid being sprayed i.e. downstream of the spraying of the gas with the wash solution.
Patent GB-1124329-A (GB)
Title: Improvements in or relating to the epitaxial deposition of crystalline layers
IPC: C30B25/14
Filed: 1965-12-23
Abstract: <PICT:1124329/C6-C7/1> In a process of epitaxial deposition of a material such as a semi-conductor on to at least two semi-conductor carriers by the decomposition of a reaction gas such as a halide or hydride, the carriers are heated to the same temperature and the reaction gas is supplied by a nozzle or nozzles in such a manner that the supply of gas varies throughout the process and the amount of gas supplied to each carrier is the same, the used reaction gas being removed by evacuating means. The gas supply may be varied by either of the following methods: 1) The nozzles may pivot randomly or in a semi-circle or they may vibrate. 2) The carriers may move and the nozzles remain static. 3) The carriers and nozzles may all move. 4) Stirrer vanes may be placed in the gas path. 5) Periodic or irregular variation of the gas pressure. 6) The gas supply to several nozzles is varied periodically.  In an example the gas is supplied by feed pipe 4 having equidistantly spaced nozzles 5. The feed pipe is rotated or pivoted so that the gas sweeps over the heated carriers 3. A pipe 6 with openings 7 removes the used gas.
Patent GB-1443489-A (GB)
Title: Method of recovering crude lead from a material containing lead in the form of oxide and/or sulphate
IPC: C22B7/02
Filed: 1974-12-20
Abstract: 1443489 Production of lead BOLIDEN AB 20 Dec 1974 [20 Dec 1973 (2)] 55222/74 Heading C7D Crude Pb is obtained by melting material containing lead oxides and/or sulphates in an inclined top blown rotary converter (eg a Kaldo) with a flame formed by burning fuel with oxygen, and then reducing the melted Pb compounds with a reducing agent. Any Zn present passes into the slag as the oxide, but if the lead oxide content of the slag falls below 5%, the ZnO is reduced and the vaporized Zn may be collected. After the Zncontaining slag is removed, any Sn, Sb and As is removed by blowing with O 2  to oxidize Sn, removing the slag, further blowing with 02 to oxidize Sb and As, and removing the slag. The fuel may be coal, oil, natural gas, or pyrites, and the reducing agent may be carbon, sulphides, H2, CO or Fe. The temperature during the reaction is 900- 1250C. The speed of rotation may reach 25 rpm during reducing and refining, and the flame may assume a reducing nature during the reduction step.
Patent GB-1376927-A (GB)
Title: Timing device for programmers
IPC: H01H43/10
Filed: 1971-11-29
Abstract: 1376927 Time switches CROUZET 29 Nov 1971 [9 Dec 1970] 55289/71 Heading H1N A programmer wherein a block of cams (not shown), is stepped by a pawl 5 acting on a drive wheel 6 is provided with a timing device adapted to suppress stepping for a preset time period by disengaging the pawl from the drive wheel and said device comprises at least two timing units either one of which can be selected to determine one of at least two different adjustable time periods of suppression. Each timing unit comprises a timing wheel 8<SP>1</SP> returned by a spring 9<SP>1</SP> into engagement with an adjustable abutment 13<SP>1</SP>a, and driven by a wheel 12<SP>1</SP> with at least one tooth 12<SP>1</SP>a and connected by a gear 16<SP>1</SP> to a reduction drive (not shown, but included in the programmer), and also a lever 7<SP>1</SP> one end 7<SP>1</SP>c of which follows a selction cam 10<SP>1</SP> stepped with the block of cams (not shown), such that the other end selectively acts on a second lever 11<SP>1</SP> to allow it to function as a return prevention member for the time wheel 8<SP>1</SP>. The first levers 7<SP>1</SP> and 7 can also act separately on a third lever 4 for disengaging the pawl 5 from the wheel 6 for a period determined by the rotation of the respective time wheel 8<SP>1</SP> or 8. As shown each timing wheel such as 8<SP>1</SP> is held by a spring 9<SP>1</SP> such that a lug 8<SP>1</SP>d abuts an adjustable back stop 13<SP>1</SP>a manually settable by a knob 151. A single-toothed wheel 12<SP>1</SP>a is driven by gears 12<SP>1</SP>, 16<SP>1</SP> the gear 16<SP>1</SP> being axially mated with gear 16 which is driven by reduction gearing (not shown). The ratios of gears 12<SP>1</SP>, 16<SP>1</SP> and 12, 16 are different such that the single teeth 12<SP>1</SP>a and 12a rotate at different speeds. Normally time wheel 81 merely oscillates against the stop 13<SP>1</SP>a, but when nose 7<SP>1</SP>c of lever 7<SP>1</SP> drops to level R3 on a selection cam 10<SP>1</SP> (which is stepped together with selection cam 10 and the block of cams not shown), the lever 11<SP>1</SP> is allowed to act as a pawl on wheel 8<SP>1</SP> which is then stepped steadily by the tooth 12<SP>1</SP>a. Simultaneously nose 7<SP>1</SP>a acts on the bar 18<SP>1</SP> to lift arm 4 and stop the drive from pawl 5 to wheel 6. After a time determined by the speed of tooth 12<SP>1</SP>a and the angular setting of the origin by back stop 13<SP>1</SP>a the nose 7<SP>1</SP>d of lever 71 rides on to a high portion of wheel 8<SP>1</SP> equivalent to that shown at 8g on wheel 8. This allows bar 18<SP>1</SP> to drop somewhat and stepping by pawl 5 recommences. A high tooth similar to 8e is still engaged by nose 11b and prevents the return of wheel 81 which oscillates idly until cam 10<SP>1</SP> lifts lever 7<SP>1</SP> to level R 1 , further lifting lever 11<SP>1</SP> and allowing spring 9<SP>1</SP> to restore wheel 8<SP>1</SP> to its rest position.